<template>
  <a-layout>

    <a-layout-sider width="200" style="background: #fff">
      <a-menu
          mode="inline"
          :style="{ height: '100%', borderRight: 0 }"
          @click="handleClick"
      >
        <a-menu-item key="welcome">
            <MailOutlined />
            <span>欢迎</span>
        </a-menu-item>
        <a-sub-menu v-for="item in level1" :key="item.id" >
          <template v-slot:title>
            <span><user-outlined />{{item.name}}</span>
          </template>
          <a-menu-item v-for="child in item.children" :key="child.id">
            <MailOutlined /><span>{{child.name}}</span>
          </a-menu-item>
        </a-sub-menu>
      </a-menu>
    </a-layout-sider>

    <a-layout-content
        :style="{ background: '#fff', padding: '24px', margin: 0, minHeight: '280px' }"
    >
      <div class = "welcome" v-show = "isShowWelcome">
        <the-welcome></the-welcome>
      </div>

      <a-list v-show="!isShowWelcome" item-layout="vertical" size="large" :grid="{ gutter: 20, column: 3 }" :data-source="ebooks">
        <template #renderItem="{ item }">
          <a-list-item key="item.name">
            <template #actions>
              <span>
                <component v-bind:is="'FileOutlined'" style="margin-right: 8px" />
                {{ item.docCount }}
              </span>
              <span>
                <component v-bind:is="'UserOutlined'" style="margin-right: 8px" />
                {{ item.viewCount }}
              </span>
              <span>
                <component v-bind:is="'LikeOutlined'" style="margin-right: 8px" />
                {{ item.voteCount }}
              </span>
            </template>
            <a-list-item-meta :description="item.description">
              <template #title>
                <router-link :to="'/doc?ebookId=' + item.id">
                  {{ item.name }}
                </router-link>
              </template>
              <template #avatar><a-avatar :src="item.cover"/></template>
            </a-list-item-meta>
          </a-list-item>
        </template>
      </a-list>

    </a-layout-content>

  </a-layout>
</template>

<script lang="ts">
import { defineComponent, onMounted, ref} from 'vue';
import axios from 'axios';
import { message } from 'ant-design-vue';
import {Tool} from "@/util/tool"
import TheWelcome from '@/components/the-welcome.vue';
import TheHeader from "@/components/the-header.vue";
import TheFooter from "@/components/the-footer.vue";

export default defineComponent({
  name: 'home',
  components: {
    TheWelcome
  },
  setup(){
    const ebooks = ref();

    const level1 =  ref();
    let categorys: any;
    /**
     * 查询所有分类
     **/
    const handleQueryCategory = () => {
      axios.get("/category/all").then((response) => {
        const data = response.data;
        if (data.success) {
          categorys = data.content;
          console.log("原始数组：", categorys);

          level1.value = [];
          level1.value = Tool.array2Tree(categorys, 0);
          console.log("树形结构：", level1.value);
        } else {
          message.error(data.message);
        }
      });
    };

    const isShowWelcome = ref(true);
    let categoryId2 = 0;

    const handleQueryEbook = () => {
      axios.get("/ebook/list",{
        params: {
          page: 1,
          size: 1000,
          categoryId2: categoryId2
        }
      }).then((response) => {
        const data = response.data;
        ebooks.value = data.content.list;
      });
    };

    const handleClick = (value: any) => {
      // console.log("menu click",value)

      if (value.key === 'welcome'){
        isShowWelcome.value = true;
      }else{
        categoryId2 = value.key;
        isShowWelcome.value = false;
        handleQueryEbook();
      }

      // isShowWelcome.value = value.key === 'welcome';
    }

    onMounted(() => {
      handleQueryCategory();
      //handleQueryEbook();
    });

    const pagination = {
      onChange: (page: number) => {
        console.log(page);
      },
      pageSize: 3,
    };


    return {
      ebooks,
      pagination,
      handleClick,
      level1,

      isShowWelcome
    }

  }

});
</script>

<style scoped>
.ant-avatar {
  width: 50px;
  height: 50px;
  line-height: 50px;
  border-radius: 8%;
  margin: 5px 0;
}
</style>